E480 (Type 20KN, 20KQ) Laptop (ThinkPad)
BIOS
RTS5455 C TYPE ROM 128KB TESTED IMRANROMI
BIOS E480 nm-b421 rev1.0
EE480 EE580 NM-B421 Rev 1.0 2017-10-30.bin
ECROM ITE
Thinkpad E580 LCFC NM-B421 BoardView PDF.pdf
NM-B421 EC ITE 256KB
BOARDVIEW.CAD
BIOS
RTS5455 C TYPE ROM 128KB TESTED IMRANROMI
BIOS E480 nm-b421 rev1.0
EE480 EE580 NM-B421 Rev 1.0 2017-10-30.bin
ECROM ITE
Thinkpad E580 LCFC NM-B421 BoardView PDF.pdf
NM-B421 EC ITE 256KB
BOARDVIEW.CAD
About this board
Files for the Lenovo E480/E580 motherboard, board number NM-B421.
The board was manufactured by LCFC for Lenovo. LCFC (Lenovo/Compal) board numbers start with NM-, so you can confirm it on the PCB silkscreen.
Files listed for this board
- BIOS (full SPI chip dump, .bin)
- Schematic (PDF)
- Boardview (.brd / .bdv / .cad)
Typical reasons to reflash: no power or no display after a failed BIOS update, a BIOS/supervisor password lock, or a corrupted Intel ME region.
Back up the original dump first — it contains machine-specific data (serial, UUID, MAC, ME), and you will want it if anything goes wrong.
Have a tested file for NM-B421? Reply below and help the next technician. Looking for something else? Search all files in the File Finder.
Attachments
ECROM ITE.bin.zip
60.2 KB · Views: 49
60.2 KB · Views: 49
Thinkpad E580 LCFC NM-B421 BoardView PDF.pdf
188.3 KB · Views: 71
188.3 KB · Views: 71
Thinkpad E580 LCFC NM-B421 DIS E480 E580 r1.0.pdf
10.9 MB · Views: 93
10.9 MB · Views: 93
Thinkpad E580 LCFC NM-B421CLEAN ME.rar
4.7 MB · Views: 128
4.7 MB · Views: 128
THINKPAF E480-E580 NM-B421 RTS5455 C TYPE ROM 128KB.bin
128 KB · Views: 17
128 KB · Views: 17
_EC_ITE 256KB.bin
256 KB · Views: 9
256 KB · Views: 9
Lenovo E480 - NM-B421 Rev1.0 BoardView.tvw.zip
3.5 MB · Views: 18
3.5 MB · Views: 18
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